the reciprocal of 4 plus the reciprocal of 5 is the reciprocal of what number? please help. thanks.

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Originally Posted by heather_meaghan the reciprocal of 4 plus the reciprocal of 5 is the reciprocal of what number? please help. thanks. let the number be x. then we have now solve for or you can simply add 1/4 and 1/5 and take the reciprocal of the answer

thank you so much!